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saboohi--yadollah
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Modeling of RCCHP System for SERI Building and Estimation of its Useful and Final Energy Demands
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Increased exploitation of energy resources has led to growing attention to the CHP systems due to their high efficiency. High energy loss in power transmission network, which is about 20 %, is an additional reason for growing attention to CHP. In addition to that, utilization of small scale CHP systems has provided ground for growing competition with distributed generators based on renewable energy resources. Selection of optimal technology based on economical and environmental criteria requires application of analytical tool. An analytical tool could avail itself of identifying optimal program for operation of cogeneration systems. The present research work has been implemented to develop...
Development and Application of a Model for Assessment of Energy Sector in Middle East and the Role of Iran
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
The Middle-East with its enormous fossil fuel resources is considered as one of the most important regions with regard to the future world energy outlook. The region produced more than 32% and 16% of the world oil and gas, respectively, in 2012 and contains more than 48% of proven oil and 43% of proven gas reserves in the world and with 78 years of reserves-to-production ratio (RPR or R/P) has a key role in global energy provision. However, the energy issues in the region are intensifying. For instance, the fossil resources are pushed to the second half of their life time due to massive exploitation which results in change in production processes and raises the need for energy investment, on...
Development of a Model for Assessing the Optimal Allocation of Innovation Resources in the Energy Technologies and Knowledge Flow
, Ph.D. Dissertation Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Energy innovation is essential for tackling climate change. However, an established set of indicators, that can support policy makers in their design of policy mixes, has not been developed for evaluating the performance of energy innovation systems. So, one of the purpose of this study is to list and classify a large set of indicators of the performance of energy innovation systems at sectoral and technological levels. 120 listed indicators are evaluated using four usefulness criteria, demonstrating significant weaknesses in the available indicators. The indicators are also classified according to an innovation process categorization to see if they cover all aspects of an innovation system...
Pollution Cost assessment of Energy Systems; Case Study: Guilan Province
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
The energy section has a significant share in the emission of environmental pollutants. Based on the recent investigations about 80 percent of greenhouse gases are emitted into the environment from this sector. This present research has focused on estimating costs of pollution control, using the energy system model. In order to have a better understanding of the relationship between energy and environment, the reference energy system for Guilan Province has been developed; then by having energy demand data, historical capacity data for each technologies and potential of energy resources as well as, the development of provincial energy system has been studied. After the model verification and...
Development of Dynamic Model for Turbo Expander Performance Assessment in Unstable State of Natural Gas Distribution Network
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
In line with the energy policies of the country, which is based on the development of the natural gas system, the natural gas transmission sector has also had a significant expansion during this period, especially in recent years. On the other hand, the promotion of energy efficiency has been a major issue in energy policies and programs. Therefore, the necessity of expanding and developing the rational use of energy has been considered more than ever. The use of energy recovery technologies will be an effective step in this regard. Owing to the wide expansion of gas pressure regulating stations in Iran and the high potential losses in pressure relief valves, substituting an expansion...
Technical and Economic Evaluation Model for Sustainable Combining of Diverse Technologies for Optimized Supplying of Water, Energy and Feed in Greenhouse
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
One of the ways to solve the problem of water scarcity in the agricultural sector is the development of the greenhouse. Using greenhouse and control of its internal conditions can increase productivity and reduce water consumption. But the issue that needs to be noted is higher energy consumption in greenhouses in comparison to traditional agriculture. The purpose of the present research is to evaluate the various technologies of supplying water and energy with a view to the climate, type of equipment and economic parameters. An analytical tool for designing and operation of the greenhouse have been developed and presented that may be applied in greenhouse sector. It is possible to evaluate...
Models for Technology Assessment and Management of Gas Flare and Developing Strategies for Reducing Flared Gas
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
The need for planning for the management and recovery of flare gases is an important issue in the energy sector of the country. On a day, about 46 million cubic meters of gas in Iran is burning in the torch, which in addition to the destruction of non-renewable energies, contributes to environmental pollution and emissions of greenhouse gases. Gas burning is one of the few pollutant activities that is due to short-term economic revenues, system design weaknesses, and lack of management in the operation process, with no service provided or value added. Iran is ranked third in the world according to satellite data among the countries that are burning flares. Accordingly, by burning 17/7...
Condition Monitoring and Operation Optimization of Hybrid Energy-Water Systems in a Variable Environment
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Condition monitoring and operation optimization framework of water and energy hybrid systems has been developed in the present research work, by taking into account the variation in behavior of the system over time under changing environmental conditions. System modeling is performed using the physical laws governing the behavior hybrid energy-water system. In addition, machine learning has been used to estimate the deviation of the mathematical model from system operation, which may be due to the effect of depreciation of machinery parts and other uncertain parameters. Using machine learning and mathematical modeling together results in increased accuracy in predicting system behavior over...
Development of an Integrated Model of Electricity & Methanol Co Production Through Solar Energy and CO2 Capture
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Emission of CO2 and its diffusion into atmosphere is associated with negative effects on the environmental such as Green House Gases effect. Various techniques of CO2 Capture in energy conversion and processing plant are investigated. A method of CO2 Capture could be based on utilization of solar energy for producing methanol. Basic design of such a system and feasibility analysis of developing that system has been considered on the subject of the present research work. Basic design and commercial feasibility of the system producing methanol through capturing CO2 from exhaust gases of a power plant and hydrogen produced by using solar energy have done such an integrated system. The main...
Development of a Model for Evaluation of Energy Resources and the Interaction between Energy and Economy
, Ph.D. Dissertation Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
To study the interaction between energy sector and the Iranian economy, an energy-economy model has been developed which itself is a part of an integrated model of Energy Planning Support System (EPSS). The model is a dynamic computable general equilibrium (DCGE) model which evaluates the medium to long-term economic developments through investment decisions. Four groups of economic agents have been considered: households, firms, governments and foreign sectors. The economic behavior of each agent along with the institutional links among them has been modeled based on neoclassical theory of general equilibrium. Therefore, the model simulates the working of a market economy and solves for a...
Model of Sustainable Development of Energy System for Hamedan Provincce
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Energy is a production factor and its availability and accessibility contributes to the improvement of the social welfare. Sustainable supply of energy is a prerequisite to the social and economical development. Over-exploitation of exhaustible energy resources along with the destruction caused by human activities has caused the environmental degradation. Therefore sustainable economic growth and improvement of the social welfare depend upon efficient supply of energy which ought to be compatible with the environment. Sustainable development is a concept which depicts a compromise between three aspects of development which are economical, social and environmental compatibility.
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Evaluation of the Impact of Exhaustible Energy Resources on Factor Productivity
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Economics is the science of using scarce resources, which helps to identify the optimal use of economic resources. Enhancement of productivity leads more efficient use of resources in economics sectors. Identification of ways and means of improving productivity is an important policy issue which requires an analysis of the effects of determinants of productivity. In the present research work, Total Factor Productivity (TFP) has been econometrically estimated; based on production function theory. Application of this concept indicates that the elasticities of total value-added (i.e. GDP minus oil rents) with respect to physical capital and labor are 0.8 and 0.2 respectively. It is further...
Evaluation of the Impact of Changes in Properties of Crude Oil on Technical Features of Petroleum Supply Chain
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Energy system of each country include of extraction, processing, conversion, transportation and distribution levels. Crude oil is one of the energy carrier which has dominant share to meet energy demand in industry and transportation sectors. Therefore, studying of physical properties changes of this energy carrier during production period is obligatory. The goal of this research is to model quality reduction of crude oil during production period of naturally occurring reservoirs. In this research quality of crude oil has been investigated inside of reservoir and after production and the effect of quality changes in before mentioned conditions according to cumulative production of reservoirs...
Developing an Integrated Energy and Environment Management System in Industrial Parks. Case Study: Siri Island
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Industrial parks represent integrated industrial systems where it helps implementing efficient measures for managing natural and fossil fuel resources and their impact on environment quality. In Iran, the most industrial parks have faced serious problems due to the irreversible effects on ecosystems. mass/energy flows management and optimization based on industrial ecology, can lead to minimizing the environmental impacts and to maximizing the value added of industrial parks simultaneously. In the present research, sustainable development in Siri island as Eco-industrial park in Iran has been investigated. The island includes: extraction, separation, operation and transportation of crude oil...
Developing Optimal Model of a Magnetohydrodynamic Generator Based Combined Cycle
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Considering the growing global electricity demand and declining world's fossil fuel resources, developing methods to improve thermal power plants' efficiency and power is of great importance. One method to increase cycle's efficiency is to increase cycle's maximum temperature. MHD generators can be added as a topping cycle to ordinary gas turbine-steam combined cycles, thus increasing cycle's maximum temperature to up to 3000K. In this study a MHD-Gas Turbine-Steam combined cycle has been modeled and optimized. In the high temperatures associated with combustion products plasma, diverse molecular decomposition and ionization processes progress. Therefore, equations of mass, energy, and...
Simulation of Direct Reduction Shaft Furnace Based on Inverse Method
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
DIRECT reduction is a process for reducing iron ore in the solid state. The product is in the form of sponge iron. This can be used directly as a raw material for steelmaking in an electric arc furnace. MIDREX process produces more than 60 percent of global DRI production. Because of high potential natural gas and iron ore resources in Iran and also lack of scarp, MIDREX direct reduction process is feasible. The main function of the MIDREX shaft furnace is to generate sponge iron from iron ore. The solids flow downwards by gravity and the reducing gases flow upwards in counter current, while the corresponding chemical transformations occur. Physical phenomena in the reactor could be...
Evaluation of Impact of New TransportationTechnologies on Development of Energy System
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
The Security of oil and gas supply and climate change are the most important challenges facing human today. Transportation sector is an important energy consumer sector. The share of transport sector in greenhouse gas emission, which steams from usage of hydro carbons, is considerable. Energy consumption and emission of pollutants in transport sector depend on the efficiency and technical features of transport technologies. Therefore, diffusion of new technologies in to transport sector has significant impact on energy usage and emission of pollutants in energy system. The aim of this project is to evaluate main features of life cycle of transportation technologies. Therefore, we developed a...
Development of an Integrated Solar Energy System for a Typical Educational Building
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
In the present thesis, A Computer software has been developed to evaluate technical and economic aspects of photovoltaic systems, off-grid and on-grid configuration, in urban areas where the electricity grid is accessible. As a case study the building of Energy Engineering faculty with annual demand of electricity in lighting section equals to 80048 kWh was considered. Regarding incident radiation and PV system characteristics with the aid of utilizability concept, a technical evaluation has been performed then life-cycle saving index was considered as a criterion for choosing an optimum nominal size of the system. Results show that for current electricity tariff of educational buildings ...
Development of Energy Supply Model under Uncertainty
, Ph.D. Dissertation Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Energy supply system model (ESM) is used as an analytical tool for policy making and optimizing the allocation of energy resources, selecting the best combination of energy carriers and technologies, and also determining required investments for development and operation of energy supply system, in order to meet the useful demand of energy. Although the modeled process in this Bottom-Up mathematical tool has deterministic characteristics, but evolution of exogenous parameters for energy sector have uncertainty which may impact on results of energy model. Limitations of applied methods for application of deterministic energy models under uncertain conditions result that all uncertain...
Evaluation of Demand Side Management Programs Using Conservation Screening Curves and its Application in Least Cost Generation Planning
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
Increasing electric energy consumption has necessitated long term planning of power generation based on the concept of least cost planning. Minimization of energy supply and optimization of technology mix had been considered as the main objective functions. But issues on the energy productivity, demand side management, externalities and internalizing external costs have dominated energy scheme which has lead to the development of comprehensive criteria such as Integrated Resource Planning (IRP) and Total Resource Cost (TRC). In these cases it is aimed to develop a comprehensive view of the energy planning that may include the case of DSM and externalities. The objective of the present...